Isle of Wight · England
Nettlecombe External Mastic
External mastic for Nettlecombe, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Hard, crazed mastic that has stopped moving
- Rigid filler in a joint that should flex
- Moss and dirt in joints with no sealant left
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Cracking across the wall rather than at a joint
- Subsidence or other structural problems
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before you book.
Where we work in Nettlecombe
- Façade panels
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Concrete & block
- Copings & trims
How we handle external mastic in Nettlecombe
Ground-floor and low-level joints are straightforward to reach. For joints higher up, give us some details of the building and we’ll confirm what access is needed. If you are dealing with weathered mastic that no longer stretches and cracked joints where brick meets render or frames, we can put it right, on concrete & block, render & cladding joints and façade panels alike.
Older homes in small places like Nettlecombe may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Nettlecombe (PO38)
- Wider area
- Isle of Wight
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What the job involves on each surface
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. Backing rod sized to the joint sets it.
Render joints
Render has movement joints and stop beads that need sealing. They’re resealed in a sealant that suits the render.
Common problems we fix in Nettlecombe
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The sealant never bonds properly.
The most common problems we see are:
- Damp patches traced to an open external joint
- Sealant that has lost its bond to the brick or render
- Weeds or debris growing in open joints
- Old sealant gone brittle and cracked
Homes close to Water Hydrant Opposite Parish Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Before booking anyone
- The length of the guarantee
- How hidden problems are handled
- What insurance they hold
- How long to leave it before use
Outside joints around Nettlecombe
Nettlecombe is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Shanklin station change hands often, and split movement joints are easy to miss on a rental until damp shows inside.
Nettlecombe is about 7 miles south of Newport, in the Isle of Wight. Our applicators cover external mastic for homeowners, landlords and businesses in Nettlecombe and nearby. Nettlecombe is one of 125 places in the Isle of Wight where we work for external mastic. For nearby work, see our Portsmouth page, about 16 miles away.
We work across PO38 for external mastic. We also cover the places around Nettlecombe: Southford (1 mile north-west), Bierley (1 mile west), Wroxall (2 miles north-east), Godshill (2 miles north) and Sandford (2 miles north). Within a short drive, we also cover Newport (7 miles north), Ryde (9 miles north-east), Cowes (11 miles north), Sandown (6 miles north-east), Shanklin (4 miles north-east) and East Cowes (11 miles north). Island and remote addresses take a little more planning, so please mention your location when you ring 0345 464 0079 or drop us an email.
Landmarks near Nettlecombe
We work in homes and buildings around The White Horse Inn. The closest station to Nettlecombe is Shanklin station, roughly 4.1 miles north-east. Other landmarks nearby include Longshoremans Museum (2.2 miles east) and Arthur Webster Memorial Hospital for Children (4.1 miles north-east). Open spaces near Nettlecombe include Stenbury Down.
What else we do in Nettlecombe
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Wash walls gently around the sealant
- Show decorators and builders where the movement joints are
- Keep water from gutters off the wall
- Make sure movement joints aren’t pointed over
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Act while the splits are small. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Common questions in Nettlecombe
Does living near the coast affect external mastic in Nettlecombe?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Is Nettlecombe within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you seal over the old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
Do you use backing rod?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.
How do I get a quote for external mastic in Nettlecombe?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What is a movement joint?
Most straight vertical gaps in brickwork are movement joints. It lets the bricks expand without cracking and needs a flexible seal, not mortar.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.
What happens on the day
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of joints, longer for a whole elevation from start to finish. In a small place like Nettlecombe, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
- Mention any sign-in or site rules at work premises
Ask for a quote
Want a quote for external mastic? Please ring 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Why act early in Nettlecombe
A failed movement joint lets water into the wall. Resealing early keeps the job to the joint itself, instead of the wall and finishes around it. In a small place like Nettlecombe, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Why Nettlecombe clients choose us
- 180+ five-star Google reviews
- Domestic, commercial and hotel work
- White, clear, grey or coloured to suit, where the product allows
- Colour agreed with you before work begins
See our cost guide or what customers say.